"

Cookies ussage consent

Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.

I agree, do not show this message again.

Study on foaming of PMI foam m aterials

HONG YAN TANG1,* , QI ZHEN CHEN1, XIAO BO RAO1

Affiliation

  1. Key laboratory of Advanced Textile Materials and Manufacturing Technology, Ministry of Education, Zhejiang Sci Tech University, Hangzhou 310018, China

Abstract

PMI foam materials were prepared using two steps, bulk polymerization through free radical copolymerization and then foaming. Effects of foaming agents, nucleating agents and other additives on the microstructure of PM I foam materials were investigated. Nucleating agents co uld markedly eliminate air bubbles amalgamation. When the mass ratio of the nucleating and foaming agent was 1:3, foaming multiple was the highest. Addition of o ther a dditives could do help to foaming, which induce d transparent closed cell ular PMI foam mat erials with uniform cell diameter and distribution. When foaming time was increased, the microstructure of PMI f oam materials remained unchanged, the mechanical properties of PMI foam materials were increased because the content of the imide ring was incre ased..

Keywords

Foaming, M icrostructure PMI foam materials.

Submitted at: Sept. 10, 2012
Accepted at: May 15, 2014

Citation

HONG YAN TANG, QI ZHEN CHEN, XIAO BO RAO, Study on foaming of PMI foam m aterials, Journal of Optoelectronics and Advanced Materials Vol. 16, Iss. 5-6, pp. 624-628 (2014)